| http://www.w3.org/ns/prov#value | - For example, if the well were an injection well or a combination injection/production well, or if the pressure pulse were transmitted or reflected from different locations in the well, then the transmitted pressure pulse 38 could travel in the same direction as the fluids 16, 24 in the tubular string 12 and/or the reflected pressure pulse 40 could travel in a direction opposite to that of the flui
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